DOSSIER · 13F Holders · Q2 2026
IREZ

INVESTMENT MANAGERS SER TR I

8 institutions still hold INVESTMENT MANAGERS SER TR I as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 46092D210·8 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$5M
visible holders
Holders
8
filers reporting
Concentration
34.80%
Optiver Holding B.V. #1
top holder share
AI Holders Summary · Q2 2026

8 institutions reported IREZ in Q2 2026. Optiver Holding B.V. leads at 34.8% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Optiver Holding B.V.
CIK 0001859606· Market maker
$2M231K0.00%Q2 2026
02
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$1M124K0.00%Q2 2026
03
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$824K27K0.00%Q1 2026
04
GTS SECURITIES LLC
CIK 0001452765· Market maker
$683K84K0.01%Q2 2026
05
StoneX Group Inc.
CIK 0000913760
$381K30K0.02%Q2 2026
06
CITADEL ADVISORS LLC
CIK 0001423053
$328K40K0.00%Q2 2026
07
Jump Financial, LLC
CIK 0001831577
$281K35K0.00%Q2 2026
08
GROUP ONE TRADING LLC
CIK 0000932540
$9K1K0.00%Q2 2026